ResearchMaterials and Fabrication
Improving materials and fabrication concepts is the most essential ingredient for realizing high-quality quantum devices. There can never be enough coherence time.
The quality factor of superconducting quantum circuits is determined both by their design and the quality of the materials and interfaces. We explore different materials including high kinetic inductance superconducting thin films to increase the lifetime of qubits. By modelling the effect of interfaces we design qubits which are less affected by surface residues. We also explore different types of qubits that by design feature long coherence times and high anharmonicity.